3-Bromo-6-chloro-2-methylpyridine

3-Bromo-6-chloro-2-methylpyridine is one of the organic compounds. It has a wide range of uses and has important applications in many fields.
In the field of medicinal chemistry, this compound is often a key intermediate for the synthesis of drugs. Due to its unique chemical structure, it can introduce specific functional groups through various chemical reactions, and then construct molecules with specific pharmacological activities. On this basis, chemists can develop new drugs for specific diseases, such as antibacterial and antiviral drugs, which make great contributions to the maintenance of human health and the treatment of diseases.
In the field of materials science, 3-bromo-6-chloro-2-methylpyridine also plays an important role. It can participate in the synthesis of functional materials, such as polymer materials with special optical and electrical properties. After rational design and reaction, it can be introduced into the polymer skeleton, which can endow the material with unique properties, such as improved photoelectric conversion efficiency and improved fluorescence characteristics, laying the foundation for the development and application of new materials.
In addition, in the field of pesticide chemistry, this compound is also an important synthetic raw material. By reacting with other compounds, pesticide products with high insecticidal and herbicidal properties can be prepared. Such pesticides are of great significance for ensuring the yield and quality of crops and promoting the sustainable development of agriculture.
In summary, although 3-bromo-6-chloro-2-methylpyridine is an organic compound, it has shown great application value in many important fields such as medicine, materials, and pesticides, and has far-reaching impact on modern science and technology and social development.

3-Bromo-6-chloro-2-methylpyridine is a kind of organic compound. It has the following physical properties:
- ** Properties **: Under normal conditions, this compound is mostly colorless to light yellow liquid, and it is clear and transparent. If impurities are mixed in, it may affect its appearance color and transparency.
- ** Melting point and boiling point **: The melting point is about -15 ° C, and the boiling point is in the range of 220-225 ° C. This melting boiling point characteristic allows its state to change accordingly under specific temperature conditions. When heated above the boiling point, it will melt into a gaseous state; when cooled below the melting point, it will condense into a solid state. < Br > - ** Density **: The density is about 1.58 g/cm ³, which is more dense than water. If mixed with water, it will sink to the bottom.
- ** Solubility **: Slightly soluble in water, but soluble in common organic solvents such as ethanol, ether, chloroform, etc. This difference in solubility is due to the difference in its molecular structure and the force between water molecules and organic solvent molecules.
- ** Odor **: With a special pungent smell, it is pungent to smell. This smell is not only obvious to the senses, but also when handling and using the substance, it is necessary to pay attention to the possible irritation caused by the smell to the human respiratory tract. < Br > - ** STABILITY **: Under normal environmental conditions, 3-bromo-6-chloro-2-methylpyridine is relatively stable. However, in case of open flame, hot topic, or contact with strong oxidants, there may be a chemical reaction, or even cause danger.
The above physical properties are of great significance for the storage, transportation, and use of this compound. When operating, appropriate safety measures and handling methods should be taken according to its characteristics.

3-Bromo-6-chloro-2-methylpyridine, this is an organic compound with unique chemical properties. In its structure, the pyridine ring is a six-membered nitrogen-containing heterocycle, which is aromatic. Due to the presence of nitrogen atoms, the electron cloud is unevenly distributed and weakly basic, and can react with acids to form salts.
Bromine and chlorine are halogen atoms with high chemical activity. In the nucleophilic substitution reaction, the halogen atom can be replaced by a nucleophilic reagent. Due to the strong electronegativity of the halogen atom, the electron cloud density of the pyridine ring is reduced, the activity of the electrophilic substitution reaction is weakened, and the substitution check point is also affected.
Methyl is attached to the pyridine ring, which is the power supply group. It will change the electron cloud density distribution of the pyridine ring and have an effect on the reactivity and selectivity. For example, in the electrophilic substitution reaction, the reaction can be more likely to occur at a specific location.
From the perspective of physical properties, 3-bromo-6-chloro-2-methylpyridine is mostly solid or liquid at room temperature, with a certain melting point and boiling point. Due to molecular polarity, it has a certain solubility in organic solvents and relatively small solubility in water.
In the field of organic synthesis, 3-bromo-6-chloro-2-methylpyridine is widely used. It can be used as a key intermediate to construct complex organic molecular structures through various reactions and is used to prepare functional compounds in the fields of medicine, pesticides, materials, etc.

In the synthesis of 3-bromo-6-chloro-2-methylpyridine, pyridine derivatives are often used as starting materials. One method is to take 2-methylpyridine and put it in a suitable reaction vessel with suitable halogenating reagents, such as brominating agent and chlorinating agent, in sequence. First, bromine atoms are introduced into specific positions. This step requires fine regulation of reaction conditions, such as temperature, reaction time, and proportion of reactants. After the bromination reaction is completed, chlorination is carried out, and the chlorine atoms are connected to the target position to obtain 3-bromo-6-chloro-2-methylpyridine. < Br >
There are also other pyridine derivatives as the starting point, through multi-step transformation, or modify the substituents on the pyridine ring, or change the electron cloud distribution to facilitate the precise access of halogen atoms. In this process, protection and de-protection strategies may be used to prevent unnecessary reactions at other non-target locations.
There are also methods of metal catalysis. Select suitable metal catalysts, such as palladium, copper and other metal complexes, in the presence of ligands, to promote the reaction of halogenated reagents and pyridine derivatives. Such catalytic reactions can often improve the selectivity and efficiency of the reaction, and can be carried out under relatively mild reaction conditions, reducing the occurrence of side reactions and providing an effective way for the synthesis of 3-bromo-6-chloro-2-methylpyridine. The various synthesis methods have their own advantages and disadvantages. It is necessary to weigh the reaction conditions, cost, yield and purity factors according to actual needs, and choose the best one.

I look at the "3-Bromo-6-chloro-2-methylpyridine" you are inquiring about. This product is in the market price range and often changes due to many factors. As an example of Guanfu's past "Tiangong Kaiwu", the prices of the products mentioned in it are also different depending on the origin, supply and demand, and production methods.
If the origin of this 3-Bromo-6-chloro-2-methylpyridine is different, the cost will be different. Produced here, or because the raw materials are easily available and the labor is cheap, the price will be cheap; produced elsewhere, the raw materials are difficult to find and the labor is expensive, and the price will be high.
Furthermore, the situation of supply and demand has a huge impact on the price. If the market needs a large number of people, but the supply is limited, such as grain in dry years, the price will rise; if the supply exceeds the demand, it is like the valley of abundant years, and the price will fall.
The production method is also the key. Simple and efficient method, the cost is low and the price can be reduced; complicated and difficult method, the cost is high and the price will rise.
Combined with various factors, the market price range is roughly between [X] yuan/gram and [Y] yuan/gram. However, this is only a rough number, and the actual price still needs to be determined according to the specific conditions of the market at that time. The market is like a flowing water, which changes all the time, and cannot be bound by all rules.